Coupling effects of heterogeneity and stress fluctuation on rupture
The coupling of mesoscopic strength distribution and stress fluctuation on damage evolution and rupture are examined. The numerical simulations show that there is only weak stress fluctuation at the initial damage stage when the mean field approximation is in effect. As the damage fraction becomes l...
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Published in | Theoretical and applied fracture mechanics Vol. 41; no. 1; pp. 381 - 389 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.04.2004
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Subjects | |
Online Access | Get full text |
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Summary: | The coupling of mesoscopic strength distribution and stress fluctuation on damage evolution and rupture are examined. The numerical simulations show that there is only weak stress fluctuation at the initial damage stage when the mean field approximation is in effect. As the damage fraction becomes larger than the threshold value, the fluctuation is amplified significantly, and damage localization appears. The coupling between stress fluctuation, disordered heterogeneity and the damage localization may play an essential role in catastrophic rupture. |
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ISSN: | 0167-8442 1872-7638 |
DOI: | 10.1016/j.tafmec.2003.11.020 |